Pixel response non-uniformity correction for multi-TDICCD camera based on FPGA

Guofang Zhai

doi:10.1117/12.2027349

24 October 2013 Pixel response non-uniformity correction for multi-TDICCD camera based on FPGA

Guofang Zhai

Proceedings Volume 8892, Image and Signal Processing for Remote Sensing XIX; 88921Z (2013) https://doi.org/10.1117/12.2027349
Event: SPIE Remote Sensing, 2013, Dresden, Germany

Abstract

A non-uniformity correction algorithm is proposed and implemented on a Field-Programmable Gate Array (FPGA) hardware platform to solve a pixel response non-uniformity(PRNU) problem of multi Time Delay and Integration Charge Couple Device(TDICCD) camera. The non-uniformity are introduced and the synthetical correction algorithm is presented, in which the two-point correction method is used in a single channel, gain averaging correction method among multi-channel and the sceneadaptive correction method among multi-TDICCD. Then, the correction algorithm is designed. Finally, analyzing the FPGA ability for fix-point processing, the correction algorithm is optimized, and implemented on FPGA. Testing results indicate that the non-uniformity can be decreased from 8.27% to 0.51% for three TDICCDs camera's images with the proposed correction algorithm, proving that this correction algorithm is with high real-time performance, great engineering realization and satisfaction for the system requirements.

Citation Download Citation

Guofang Zhai "Pixel response non-uniformity correction for multi-TDICCD camera based on FPGA", Proc. SPIE 8892, Image and Signal Processing for Remote Sensing XIX, 88921Z (24 October 2013); https://doi.org/10.1117/12.2027349

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